DE59203841D1 - Kathode und Verfahren zu ihrer Herstellung. - Google Patents

Kathode und Verfahren zu ihrer Herstellung.

Info

Publication number: DE59203841D1
Authority: DE; Germany
Prior art keywords: cathode; manufacture
Prior art date: 1991-12-21
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Expired - Fee Related

Application number

DE59203841T

Other languages

English (en)

Inventor

Georg Dr Gaertner

Jan Dr Hasker

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Philips Intellectual Property and Standards GmbH

Original Assignee

Philips Patentverwaltung GmbH

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1991-12-21

Filing date

1992-12-14

Publication date

1995-11-02

1992-12-14 Application filed by Philips Patentverwaltung GmbH filed Critical Philips Patentverwaltung GmbH

1995-11-02 Application granted granted Critical

1995-11-02 Publication of DE59203841D1 publication Critical patent/DE59203841D1/de

2012-12-15 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/02—Manufacture of electrodes or electrode systems
- H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
- H01J9/042—Manufacture, activation of the emissive part
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/13—Solid thermionic cathodes
- H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
- H01J1/28—Dispenser-type cathodes, e.g. L-cathode

Landscapes

Engineering & Computer Science (AREA)
Manufacturing & Machinery (AREA)
Chemical Vapour Deposition (AREA)
Solid Thermionic Cathode (AREA)

DE59203841T 1991-12-21 1992-12-14 Kathode und Verfahren zu ihrer Herstellung. Expired - Fee Related DE59203841D1 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE4142535A DE4142535A1 (de)	1991-12-21	1991-12-21	Scandat-kathode und verfahren zur ihrer herstellung

Publications (1)

Publication Number	Publication Date
DE59203841D1 true DE59203841D1 (de)	1995-11-02

Family

ID=6447855

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
DE4142535A Withdrawn DE4142535A1 (de)	1991-12-21	1991-12-21	Scandat-kathode und verfahren zur ihrer herstellung
DE59203841T Expired - Fee Related DE59203841D1 (de)	1991-12-21	1992-12-14	Kathode und Verfahren zu ihrer Herstellung.

Family Applications Before (1)

Application Number	Title	Priority Date	Filing Date
DE4142535A Withdrawn DE4142535A1 (de)	1991-12-21	1991-12-21	Scandat-kathode und verfahren zur ihrer herstellung

Country Status (4)

Country	Link
US (1)	US5936334A (de)
EP (1)	EP0549034B1 (de)
JP (1)	JPH05266786A (de)
DE (2)	DE4142535A1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
KR100260691B1 (ko)	1995-06-09	2000-07-01	니시무로 타이죠	함침형 음극 구조체, 이것에 사용되는 음극 기재, 이 음극 기재를 이용한 전자총 구조체 및 전자관
DE19527723A1 (de)	1995-07-31	1997-02-06	Philips Patentverwaltung	Elektrische Entladungsröhre oder Entladungslampe und Scandat-Vorratskathode
DE19828729B4 (de) *	1998-06-29	2010-07-15	Philips Intellectual Property & Standards Gmbh	Scandat-Vorratskathode mit Barium-Calcium-Aluminat-Schichtabfolge und korrespondierende elektrische Entladungsröhre
US6420822B1 (en) *	1999-07-15	2002-07-16	Northrop Grumman Corporation	Thermionic electron emitter based upon the triple-junction effect
US20030025435A1 (en) *	1999-11-24	2003-02-06	Vancil Bernard K.	Reservoir dispenser cathode and method of manufacture
DE19961672B4 (de) *	1999-12-21	2009-04-09	Philips Intellectual Property & Standards Gmbh	Scandat-Vorratskathode
RU2301474C2 (ru) *	2005-04-29	2007-06-20	Федеральное Государственное Унитарное Предприятие "Центральный Научно-Исследовательский Институт Конструкционных Материалов "Прометей" (Фгуп "Цнии Км "Прометей")	Электрод низкотемпературного плазмотрона
CA2690624A1 (en) *	2007-07-23	2009-01-29	Hyperbranch Medical Technology, Inc.	Polymeric masking materials for spanning wound sites, and methods of use thereof
CN104299869B (zh) *	2014-09-26	2017-01-11	北京工业大学	一种浸渍型Re3W-Sc2O3混合基阴极材料及其制备方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4101800A (en) *	1977-07-06	1978-07-18	The United States Of America As Represented By The Secretary Of The Navy	Controlled-porosity dispenser cathode
NL8403032A (nl) *	1984-10-05	1986-05-01	Philips Nv	Werkwijze voor het vervaardigen van een scandaatnaleveringskathode, naleveringskathode vervaardigd met deze werkwijze.
JPS61183838A (ja) *	1985-02-08	1986-08-16	Hitachi Ltd	含浸形カソ−ド
KR900009071B1 (ko) *	1986-05-28	1990-12-20	가부시기가이샤 히다찌세이사구쇼	함침형 음극
JPS63224127A (ja) *	1987-03-11	1988-09-19	Hitachi Ltd	含浸形陰極
KR910002969B1 (ko) *	1987-06-12	1991-05-11	미쓰비시전기주식회사	전자관음극(cathode for an electron tube)
NL8702727A (nl) *	1987-11-16	1989-06-16	Philips Nv	Scandaatkathode.
FR2647952A1 (fr) *	1989-05-30	1990-12-07	Thomson Tubes Electroniques	Cathode thermoelectronique impregnee pour tube electronique
DE4114856A1 (de) *	1991-05-07	1992-11-12	Licentia Gmbh	Vorratskathode und verfahren zu deren herstellung

1991
- 1991-12-21 DE DE4142535A patent/DE4142535A1/de not_active Withdrawn
1992
- 1992-12-14 EP EP92203887A patent/EP0549034B1/de not_active Expired - Lifetime
- 1992-12-14 DE DE59203841T patent/DE59203841D1/de not_active Expired - Fee Related
- 1992-12-21 JP JP34067792A patent/JPH05266786A/ja active Pending
1994
- 1994-10-31 US US08/332,620 patent/US5936334A/en not_active Expired - Fee Related

Also Published As

Publication number	Publication date
JPH05266786A (ja)	1993-10-15
US5936334A (en)	1999-08-10
EP0549034A1 (de)	1993-06-30
DE4142535A1 (de)	1993-06-24
EP0549034B1 (de)	1995-09-27

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Legal Events

Date	Code	Title	Description
1996-10-24	8364	No opposition during term of opposition
1999-12-30	8327	Change in the person/name/address of the patent owner	Owner name: PHILIPS CORPORATE INTELLECTUAL PROPERTY GMBH, 2233
2002-11-07	8339	Ceased/non-payment of the annual fee